/Engine/Source/Runtime/CoreUObject/Public/UObject/Object.h
Append config values or settings that can change how instances of the class are cooked, including especially values that determine how version upgraded are conducted. Can also append a unique guid when necessary to invalidate previous results because serialization changed and no custom version was udpated.
static void AppendToClassSchema ( [FAppendToClassSchemaContext](API\Runtime\CoreUObject\UObject\FAppendToClassSchemaContext) & Context )